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FAQs -> colour-matching -> viewing question


answer 1

Your crowns are stopping the light from transmitting into the roots and causing a shadow.  The join of the crown to your remaining root might also be too high away from the gum. Composite repairs may resolve this. 


The alternative would be to remake your crowns in a more light transmitting material (all ceramic; however, your bite might break these). This will be between you and your dentist and the discussions and budget set for the crowns you have had.



Dentist Photograph

answered by Mr TJ Nicolas

answer 2

It is a shame that you are not fully satisfied with the result that your dentist provided and that you have had no explanation as to what was causing the damage that necessitated such extensive treatment.


 I am surprised that he did not discuss with you the various options for treatment and that even if he felt that veneers were not appropriate that it might be possible to use all ceramic crowns that do not show dark margins. In my experience, it is rarely possible to achieve an acceptable cosmetic result by applying composite to dark crown margins.



Dentist Photograph

answered by Dr Paul Mandon-Gassman BDS

answer 3

Composites are the most widely used dental filling materials. They are ubiquitous.  With care they can be used to mask some aesthetic defects.

answered by Dr Hamish Roberton BDS

answer 4

Hi. Firstly, veneers can withstand a hugh amount of force as long as the 'bite' is planned and restored correctly. Crowns should not have a black line if they are prepared in the correct way, especially not at such an early stage. I would not recommend having composite (white filling) to solve this problem, the crowns should just be done again in the right way.  It is your right to expect high quality treatment if you paid for it!

Dentist Photograph

answered by

answer 5

Veneers may or may not have worked and your dentist obviously felt full coverage crowns the better solution.  Now that the teeth have been prepared, full coverage crowns are the only option. The dark line is most likely from the poor light reflection properties of porcelain fused to metal crowns.  Metal-free options, such as ProceraŽ or zirconium are less likely to cause this. Adding composite is essentially like placing a filling at the crown margin and so is not the best option in the long run as it is likely to discolor over time and is not as structurally intact as a crown and so prone to leakage.



Dentist Photograph

answered by Dr David Bloom BDS

answer 6

Yes, it is certainly possible to camouflage the dark line that is sometimes seen on the margin of a porcelain fused to metal crown at the gumline.  We use a composite resin with opaquing agents which is bonded to the crown/tooth, to hide the dark colour of the metal.

Dentist Photograph

answered by Dr Kurt Mutzelburg BDS (Hons)






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